Tom Ousby, who is widely reported to have died after falling from a hotel in Spain, was an aspiring model and musician from London.
A YouTube video of him playing drums to Taylor Swift's song 22 has been watched more than 9,000 times.
Tributes have meanwhile flooded on to Twitter, including a picture of his name spelled out in tea-light candles.
His reported death came days after he apparently planned to return to the UK, tweeting: "Magas all good, coming home sometime this week tho."
More top news
Anna Campbell was the first British woman to die fighting with Kurdish forces in the war-torn country.
The new legal framework is set to be tabled in the Dublin Parliament in the autumn.
The Met Office has issued a weather warning for much of England and all of Wales.